mark: Standard stocked item
mark:
To be replaced by a new item featured on the same page
mark: To be replaced by new item
(Please confirm stock availability)
mark:
Semi-standard stock (Please confirm stock availability)
mark:
Stock or planned stock (Please confirm stock availability)
No mark: Made-to-order item
mark: We cannot produce
Stock Indications and Symbols
F33
Cut-Off Tools
SumiGrip Jr.
SumiGrip
SEC-Small Diameter Cut-off Tools
SEC-Grooving / Cut-Off Tools
SEC-Cut-Off Tool Series Selection Guide F34
Introduction of SumiGrip F35
STFH Type F36
STFS Type F37
WCFH Type F38
WCFS Type F39
SCT Type F40
GNDM Type F42
GNDL Type F44
GNDM Type / GNDML Type (Small Tool) F46
F
Cut-Off Tools
Grooving
Cut-Off
Threading
F33
to F46
F
Cut-Off Tools
F
F34
F
Cut-Off Tools
Grooving
Cut-Off
Threading
Range of Tool Application (For Solid Workpieces)
Cut-off Tool Series
ut-off diameter
Width*
SCT
GNDM/
GNDL
GNDM/
GNDL
Small Tools
Small to Medium Dia.
Medium to Large Dia.
WCFH/
WCFS
F40
F42 to F44
F46
F36 to F37
F38 to F39
Sharp cutting edge with ground
inserts
Screw can be tighten from both sides
2-cornered type
Our first recommendation for small
lathes
Sharp cutting edge reduces cutting
resistance and minimizes nip formation
SEC-Small Diameter Cut-off Tools
SCT Type
SEC-Cut-off Tools
GND Type
GNDM Type / GNDL Type
SEC-Cut-off Tools
Our first recommendation for small to
medium diameters
High rigidity body and rigid clamping
enable stable cut-off operations
Our first recommendation for medium
to large diameters
Blade type is available for cut-off
diameters of up to ø140mm
High-rigidity body, rigid clamping
Outstanding chip control
Unground 2-cornered inserts
High-rigidity design and outstanding
chip control
2-cornered unground inserts available
in widths starting from 1.25mm
Large diameter machining up to
ø100mm
Economical steel shank
1-cornered self-grip type
Large diameter machining up to
ø100mm
High-rigidity carbide shank
1-cornered self-grip type
STFH/
STFS
Cut-Off
SumiGrip Jr.
SumiGrip
50.0
8.02.0
2.0
2.0
100.0
5.0
140.0
5.0
SumiGrip Jr.
Steel Shank
SumiGrip
Carbide Shank
16.0
2.0
0.5
32.0
3.01.25
Stock
Stock
Stock
Stock
Small Tools
Insert
Shape
( ): No. of corners
Application
Characteristics
ShapeSeries
140
120
100
80
60
40
20
10 23456789
Cut-off diameter mm
Width of cut mm
WCFS
Carbide-Steel Holder
STFH32
Steel Holder
WCFH26
Carbide Holder
WCFH32
Carbide Holder
STFS
Steel Holder
(
2
)
(
2
)
(1)
(1)
GNDL
GNDM
GNDL
GNDL
Small Tools
Small Tools
GNDM
GNDM
Small Tools
Small Tools
STFH26
Steel Holder
SCT
SEC-Cut-off Tool Series
SELECTION GUIDE
F35
F
Cut-Off Tools
Grooving
Cut-Off
Threading
Characteristics
Carbide and steel holders (SumiGrip Jr.) are available.
Applicable to interrupted cutting.
For cut-off, grooving and chamfering etc.
Types
Tool block type
Shank type
Performance
Tool Block Type Selection Guide
0 100 200 300
80
70
60
50
40
0.15
0.10
0.05
130
270
0
0.1 0 50
40mm
1000.2 0.3
Insert Clamping Force
Insert Clamping Force (N)
SumiGrip Jr.
Comp. A
(Width
3mm)
Good
Holder Overhang Wear Resistance
Feed Rate f (mm/rev) No. of Cut-Offs
Work
Shape
SumiGrip
SumiGrip
Comp. A
Comp. A
Breakage
SumiGrip Jr.
SumiGrip Jr.
Work Material: S45C (ø50mm, HB250)
Cutting Speed: v
c
=80m/min, Dry
Work Material: S45C (Hex),
Insert: Coated (3mm Width)
Cutting Speed:
v
c
=
150mm/min, f
=
0.15mm/rev
Water-soluble Cutting Oil
Holder Overhang Limit (mm)
Flank Wear Width (mm)
More than double of competitor's
Insert
Small Wedge Angle
Toolholder
Optimum
Clamp Design
SEC-Cut-Off Tools
General-Purpose Lathe etc. Turret Type Tool Post
Clamp from above Clamp from the side
Applicable when the tool post of the machine
is like shown on the right.
Applicable whether the tool post of the machine
is like or shown on the right.
Large clamp design enable long holder
overhangs with wide clamping area.
Tool block (one unit)
Tool block (2 piece unit)
12.5
20
18
a
bc
Ex. SBN20–26
Ex. SBU20–26
a
12.5
20
18
a
bc
a
SBN Type
SBU Type
Spacer
Tool block Tool block
Tool Post
Wedge
Tool Post
a
:
Center
Height
a
:
Center
Height
F36
F
Cut-Off Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No. Stock
Dimensions (mm)
Max.
Cut-off
Diameter
Applicable Insert
Applicable Tool Block
Spanner
hbL
1
h
1
L
2
w
STFH 26-2
26 1.6 109 21.4 108 2 40WCF 2
SBN 20-26
SBU 20-26
SL-4
STFH 26-3
26 2.4 109 21.4 108 3 70WCF 3
STFH 26-4
26 3.4 109 21.4 108 4 70WCF 4
STFH 26-5
26 4.3 109 21.4 108 5 70WCF 5
STFH 32-2
32 1.6 149 25.0 148 2 40WCF 2
SBN 20-32
SBN 25-32
SBU 20-32
SBU 25-32
STFH 32-3
32 2.4 149 25.0 148 3 100 WCF 3
STFH 32-4
32 3.4 149 25.0 148 4 100 WCF 4
STFH 32-5
32 4.3 149 25.0 148 5 100 WCF 5
* Shape of STFH32-2 is slightly different from the above figure.
Tool Block (Integrated Unit)
Spare Parts
L
12.5
20
18
H
h
a
h
b
h
c
<
SBN20–26
>
a
:
Center
Height
Cat. No.
Stock
Dimensions (mm)
Clamp
Double
Screw
Spanner
h
a
h
b
h
c
HL
SBN 20-26
20 20
10.0
45 80
BWS30 WB8-20 LH040
SBN 20-32
20 20
13.5
50 100
SBN 25-32
25 25
8.5
50 110
Inserts (Inserts are same as those for the carbide holder SumiGrip Series.)
2- 0.2
w
2- 0.2
w
2- 0.2
w
WCF 2T : =0.15
Left Hand (L)
Right Hand (R)
Neutral (N)
WCF
General Steel
WCF 2T
Small Dia. Low Force
WCF A
Exotic Metal, Low Feed
WCF B
(Cast Iron, Non Ferrous Metal
Applicable Holder
Cat. No.
Coated Carbide
w
Cat. No.
Coated Carbide
Cermet Carbide
w
Cat. No.
Carbide
w
AC830P
AC225
T1500A T1200A
A30
G10E G10E
WCF N2T
2
WCF N2A
2
STFH 26-2
STFH 32-2
WCF R2T
2
WCF L2T
2
WCF N3
3
WCF N3A
3
WCF N3B
3
STFH 26-3
STFH 32-3
WCF R3
3
WCF R3A
3
WCF R3B
3
WCF L3
3
WCF L3A
3
WCF L3B
3
WCF N4
4
WCF N4A
4
WCF N4B
4
STFH 26-4
STFH 32-4
WCF R4
4
WCF R4A
4
WCF R4B
4
WCF L4
4
WCF L4A
4
WCF L4B
4
WCF N5
5
WCF N5A
5
WCF N5B
5
STFH 26-5
STFH 32-5
WCF R5
5
WCF R5A
5
WCF R5B
5
WCF L5
5
WCF L5A
5
WCF L5B
5
WCF B type is similar in shape with WCF type but with smaller edge treatment.
Cut-off Tools (Steel Holder/Tool Block Type)
Tool Block (Separable Unit) Spare Parts
<
SBU20–26
>
L
12.5
20
18
H
h
a
h
b
h
c
a
:
Center
Height
BCS15
BCS20
BCS25
Cat. No.
Stock
Dimensions (mm)
Clamp
Cap
Screw
Spanner
h
a
h
b
h
c
HL
SBU 20-26
20 20
10.0
45 80 BCS15
BX0622 LH050
SBU 20-32
20 20
13.5
50 100 BCS20
SBU 25-32
25 25
8.5
50 110 BCS25
Cut-Off
STFH
L
1
w
b
h
h
1
150°
L
2
SEC-Cut-Off Tools
STFH
Type
mark : To be replaced by new item (Please confirm stock availability)
Cut-Off
Insert
Hammer
There is no need to force the insert
right back on to the stopper.
Please note that excessive knocking on the insert
may cause damage to both insert and holder.
Mounting Inserts
Mount insert by lightly
knocking it in with a wooden
or plastic hammer.
(Check that the insert cannot
be pulled out by hand.)
F37
F
Cut-Off Tools
Grooving
Cut-Off
Threading
Cut-Off (Steel Holder/Shank Type)
Spare Parts
Holders
Above figures show right hand tools.
Cat. No.
Stock Dimensions (mm)
Max.
Cut-off
Diameter
Applicable Insert
Spanner
RL hbL
1
fh
1
L
2
L
3
w
STFS R/L1010-2
10 10 86 10 10 17 17 228
WCF 2
SL-4
STFS R/L1212-2
12 12 110 12 12 18 18 230
STFS R/L1616-2
16 16 110 16 16 19 232
STFS R/L2020-2
20 20 125 20 20 24 240
STFS R/L1616-3
16 16 110 16 16 20 22 335
WCF 3
STFS R/L2012-3
20 12 110 12 20 24 340
STFS R/L2020-3
20 20 125 20 20 30 350
STFS R/L2525-3
25 25 150 25 25 30 350
STFS R/L2020-4
20 20 125 20 20
33 455
WCF 4
STFS R/L2525-4
25 25 150 25 25
38 465
STFS R/L2020-5
20 20 125 20 20
35 560
WCF 5
STFS R/L2525-5
25 25 150 25 25
40 570
Recommended Cutting Conditions
Grade
Cutting Speed v
c
(m/min)
Feed Rate f (mm/rev)
P
General Steel
P
Soft Steel
P
Die Steel
M
Stainless Steel
K
Cast Iron
ACE-Coat AC830P
v
c
100 to 230 120 to 250 60 to 150 80 to 200
f
0.10 to 0.30 0.08 to 0.15 0.08 to 0.15 0.08 to 0.25
For
WCF 2T
v
c
50 to 230 50 to 250 50 to 150 50 to 200
f
0.03 to 0.10 0.02 to 0.10 0.03 to 0.10 0.03 to 0.10
ACE-Coat AC225*
v
c
80 to 200 100 to 230 60 to 150 60 to 180
f
0.08 to 0.25 0.04 to 0.20 0.04 to 0.20 0.05 to 0.20
Cermet
T1500A
T1200A
v
c
80 to 200 100 to 230 60 to 150 60 to 180
f
0.03 to 0.15 0.05 to 0.20 0.03 to 0.08 0.03 to 0.10
Carbide A30
(*Cast Iron: G10E)
v
c
50 to 120 70 to 150 50 to 120 70 to 150 50 to 120
f
0.05 to 0.20 0.04 to 0.15 0.04 to 0.15 0.04 to 0.15
0.06 to 0.20
* AC225: CVD coated carbide grade for low-speed, low feed-rate cutting.
Inserts (Inserts are same as those for the carbide holder SumiGrip Series.)
2- 0.2
w
2- 0.2
w
2- 0.2
w
WCF 2T : =0.15
Left Hand (L)
Right Hand (R)
Neutral (N)
WCF
General Steel
WCF 2T
Small Dia. Low Force
WCF A
Exotic Metal, Low Feed
WCF B
Cast Iron, Non Ferrous Metal
Applicable Holder
Cat. No.
Coated Carbide
w
Cat. No.
Coated Carbide
Cermet Carbide
w
Cat. No.
Carbide
w
AC830P
AC225
T1500A T1200A
A30
G10E G10E
WCF N2T
2
WCF N2A
2
STFS R/L1010-2,STFS R/L2020-2,
STFS R/L1212-2
STFS R/L1616-2
WCF R2T
2
WCF L2T
2
WCF N3
3
WCF N3A
3
WCF N3B
3
STFS R/L1616- 3,STFS R/L2525-3,
STFS R/L2020-3
STFS R/L2012-3
WCF R3
3
WCF R3A
3
WCF R3B
3
WCF L3
3
WCF L3A
3
WCF L3B
3
WCF N4
4
WCF N4A
4
WCF N4B
4
STFS R/L2020-4
STFS R/L2525-4
WCF R4
4
WCF R4A
4
WCF R4B
4
WCF L4
4
WCF L4A
4
WCF L4B
4
WCF N5
5
WCF N5A
5
WCF N5B
5
STFS R/L2020-5
STFS R/L2525-5
WCF R5
5
WCF R5A
5
WCF R5B
5
WCF L5
5
WCF L5A
5
WCF L5B
5
WCF B type is similar in shape with WCF type but with smaller edge treatment.
Cut-Off
STFS
w
L
1
Max. Cut-off Diameter
b
f
h
1
h
L
3
L
2
mark : To be replaced by new item (Please confirm stock availability)
SEC-Cut-Off Tools
STFS
Type
Cut-Off
Insert
Hammer
Mounting Inserts
There is no need to force the insert
right back on to the stopper.
Please note that excessive knocking on the insert
may cause damage to both insert and holder.
Mount insert by lightly
knocking it in with a wooden
or plastic hammer.
(Check that the insert cannot
be pulled out by hand.)
F38
F
Cut-Off Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders Above figures show right hand tools.
Cat. No. Stock
Dimensions (mm)
Max.
Cut-off
Diameter
Applicable Insert
Applicable Tool Block
Spanner
hbL
1
h
1
L
2
w
WCFH 26-2
26 1.7 110 21.4
109.0
2 40WCF 2
SBN 20-26
SBU 20-26
SL-2
WCFH 26-3
26 2.4 110 21.4
108.5
3 80WCF 3
SL-1
WCFH 26-4
26 3.4 110 21.4
108.5
4 80WCF 4
WCFH 26-5
26 4.3 110 21.4
108.5
5 80WCF 5
WCFH 32-2
32 1.7 150 25.0
149.0
2 40WCF 2
SBN 20-32
SBN 25-32
SBU 20-32
SBU 25-32
SL-2
WCFH 32-3
32 2.4 150 25.0
148.5
3 140 WCF 3
SL-1
WCFH 32-4
32 3.4 150 25.0
148.5
4 140 WCF 4
WCFH 32-5
32 4.3 150 25.0
148.5
5 140 WCF 5
SEC-Cut-Off Tools
WCFH
Type
Cut-Off (Tool Block Type)
Tool Block (Integrated Unit) Spare Parts
L
12.5
20
18
H
h
a
h
b
h
c
<
SBN20–26
>
a
:
Center
Height
Cat. No.
Stock
Dimensions (mm)
Clamp
Double
Screw
Spanner
h
a
h
b
h
c
HL
SBN 20-26
20 20
10.0
45 80
BWS30 WB8-20 LH040
SBN 20-32
20 20
13.5
50 100
SBN 25-32
25 25
8.5
50 110
Tool Block (Separable Unit) Spare Parts
<
SBU20–26
>
L
12.5
20
18
H
h
a
h
b
h
c
a
:
Center
Height
BCS15
BCS20
BCS25
Cat. No.
Stock
Dimensions (mm)
Clamp
Cap
Screw
Spanner
h
a
h
b
h
c
HL
SBU 20-26
20 20
10.0
45 80 BCS15
BX0622 LH050
SBU 20-32
20 20
13.5
50 100 BCS20
SBU 25-32
25 25
8.5
50 110 BCS25
Inserts (Inserts are same as those for the steel SumiGrip Jr. holder.)
2- 0.2
w
2- 0.2
w
2- 0.2
w
WCF 2T : =0.15
Left Hand (L)
Right Hand (R)
Neutral (N)
WCF
General Steel
WCF 2T
Small Dia. Low Force
WCF A
Exotic Metal, Low Feed
WCF B
Cast Iron, Non Ferrous Metal
Applicable Holder
Cat. No.
Coated Carbide
w
Cat. No.
Coated Carbide
Cermet Carbide
w
Cat. No.
Carbide
w
AC830P
AC225
T1500A T1200A
A30
G10E G10E
WCF N2T
2
WCF N2A
2
WCFH 26-2
WCFH 32-2
WCF R2T
2
WCF L2T
2
WCF N3
3
WCF N3A
3
WCF N3B
3
WCFH 26-3
WCFH 32-3
WCF R3
3
WCF R3A
3
WCF R3B
3
WCF L3
3
WCF L3A
3
WCF L3B
3
WCF N4
4
WCF N4A
4
WCF N4B
4
WCFH 26-4
WCFH 32-4
WCF R4
4
WCF R4A
4
WCF R4B
4
WCF L4
4
WCF L4A
4
WCF L4B
4
WCF N5
5
WCF N5A
5
WCF N5B
5
WCFH 26-5
WCFH 32-5
WCF R5
5
WCF R5A
5
WCF R5B
5
WCF L5
5
WCF L5A
5
WCF L5B
5
WCF B type is similar in shape with WCF type but with smaller edge treatment.
WCFH
Cut-Off
w
L
1
b
150°
h
1
h
L
2
20
20
b
2.4
(WCFH32-2)
mark : To be replaced by new item (Please confirm stock availability)
Be aware that excessively driving the insert
may cause damage to the insert or holder.
Mounting Inserts
Mount an insert by lightly
knocking it in with a wooden or
plastic hammer.
(Check that the insert cannot be
pulled out with a hand.)
Insert
Hammer
Cut-Off
F39
F
Cut-Off Tools
Grooving
Cut-Off
Threading
SEC-Cut-Off Tools
WCFS
Type
Cut-Off (Shank Type)
Spare Parts
Holders Above figures show right hand tools.
Series Cat. No.
Stock Dimensions (mm)
Max.
Cut-off
Diameter
Applicable
Blade
Applicable
Insert
Fig.
Spanner
RLhbL
1
ff
1
h
1
L
2
w
Brazed Type
WCFS R/L1010-2
10 10 86 10 8 10 10 228 WCF 2 1
SL-2
WCFS R/L1212-2
12 12 110 12 10 12 18 230 WCF 2 1
WCFS R/L1616-2
16 16 100 16 14 16 25 235 WCF 2 2
WCFS R/L1616-3
16 16 100 16 13 16 25 335 WCF 3 2
SL-1
Clamp Type
WCFS R/L20-3
20 20 125 23 20 20 46 350WCFH17-3 WCF 3 3
SL-1
WCFS R/L20-4
20 20 125 24 20 20 46 450WCFH17-4 WCF 4 3
WCFS R/L20-5
20 20 125 25 20 20 46 550WCFH17-5 WCF 5 3
WCFS R/L25-3
25 25 150 28 25 25 46 350WCFH17-3 WCF 3 4
WCFS R/L25-4
25 25 150 29 25 25 46 450WCFH17-4 WCF 4 4
WCFS R/L25-5
25 25 150 30 25 25 46 550WCFH17-5 WCF 5 4
Blade is included with the holder.
Blades
w
17
B
26.5
44.5
Cat. No. Stock
Dimensions (mm)
Applicable Holder
wB
WCFH 17-3
3 2.4
WCFS R/L20-3,25-3
WCFH 17-4
4 3.4
WCFS R/L20-4,25-4
WCFH 17-5
5 4.3
WCFS R/L20-5,25-5
Spare Parts
Cap
Screw
Spanner
Applicable
Holder
BX0622 LH050
All Clamp
Types
Inserts (Inserts are same as those for the steel SumiGrip Jr. holder.)
2- 0.2
w
2- 0.2
w
2- 0.2
w
WCF 2T : =0.15
Left Hand (L)
Right Hand (R)
Neutral (N)
WCF
General Steel
WCF 2T
Small Dia. Low Force
WCF A
Exotic Metal, Low Feed
WCF B
Cast Iron, Non Ferrous Metal
Applicable Holder
Cat. No.
Coated Carbide
w
Cat. No.
Coated Carbide
Cermet Carbide
w
Cat. No.
Carbide
w
AC830P
AC225
T1500AT1200A
A30
G10E G10E
WCF N2T
2
WCF N2A
2
WCFS R/L1010-2
WCFS R/L1212-2
WCFS R/L1616-2
WCF R2T
2
WCF L2T
2
WCF N3
3
WCF N3A
3
WCF N3B
3
WCFS R/L1616-3
WCFS R/L20-3
WCFS R/L25-3
WCF R3
3
WCF R3A
3
WCF R3B
3
WCF L3
3
WCF L3A
3
WCF L3B
3
WCF N4
4
WCF N4A
4
WCF N4B
4
WCFS R/L20-4
WCFS R/L25-4
WCF R4
4
WCF R4A
4
WCF R4B
4
WCF L4
4
WCF L4A
4
WCF L4B
4
WCF N5
5
WCF N5A
5
WCF N5B
5
WCFS R/L20-5
WCFS R/L25-5
WCF R5
5
WCF R5A
5
WCF R5B
5
WCF L5
5
WCF L5A
5
WCF L5B
5
WCF B type is similar in shape with WCF type but with smaller edge treatment.
WCFS
Cut-Off
L
1
f
1
w
f
b
h
h
1
L
2
L
2
h
h
1
L
1
26.5
f
1
f
w
b
h
h
1
46
46
L
1
h
h
1
46
Fig.1 Fig.2 Fig.3
L
2
L
2
Maximum
Cut-off Diameter
Maximum
Cut-off Diameter
Fig.4
mark: To be replaced by new item (Please confirm stock availability)
Be aware that excessively driving the insert
may cause damage to the insert or holder.
Mounting Inserts
Mount an insert by lightly
knocking it in with a wooden or
plastic hammer.
(Check that the insert cannot be
pulled out with a hand.)
Insert
Hammer
Cut-Off
Brazed Type Clamp Type
F40
F
Cut-Off Tools
Grooving
Cut-Off
Threading
SEC-Cut-Off Tools
SCT
Type
Spare Parts
Holders (Right Hand) Above figures show right hand tools.
Cat. No. Stock
Dimensions (mm)
Applicable Insert Fig.
Screw Spanner
hbL
1
fh
1
L
2
SCT R1010
10 10 120 10 10 15
CT R05 (-NB)
CT R12 (-NB)
1
BFTX0410T8L
TRX08
SCT R1212
12 12 120 12 12 15
SCT R1616
16 16 120 16 16 15
SCT R1010-16
10 10 120 10 10 18
CT R16 (-NB)
2
SCT R1212-16
12 12 120 12 12 18
1
SCT R1616-16
16 16 120 16 16 18
Characteristics
Comparison Test
Holders (Left Hand)
SCT L1010
10 10 120 10 10 15
CT L05 (-NB)
CT L12 (-NB)
1
BFTX0410T8R
TRX08
SCT L1212
12 12 120 12 12 15
SCT L1616
16 16 120 16 16 15
SCT L1010-16
10 10 120 10 10 18
CT L16 (-NB)
2
SCT L1212-16
12 12 120 12 12 18
1
SCT L1616-16
16 16 120 16 16 18
SCT
Cut-Off
h
1
1.5°
f
L
1
b
h
L
2
h
1
1.5°
f
L
1
b
h
L
2
Fig.1 Fig.2
18
2
0
100
300
200
SCT Type Competitor's
Wear Resistance
Cutting Resistance (N)
Principal
Force
Feed
Force
Competitor's
SCT Type
Surface Finish Comparison
Work Material: S45C (ø10mm) Grooving Width: 1.5mm
v
c
=60m/min f=0.06mm/rev Wet
Work Material: SUS430 (ø8mm) Grooving Width: 1.0mm (handed)
v
c
=45m/min f=0.02mm/rev Wet
CT Type Insert
Design
SCT Type Holder
Sharp cutting edge with
arc-shaped breaker minimises
cutting force with good
chip removal ability
New screw with
spanner head at both
ends makes it possible
to change inserts from
the back
Maximum Cut-off Diameter
ø5/ø12/ø16
Grooving Width 0.5/1.0/1.5/2.0mm
Corner R 0.05/0mm
Lead Angle 0°/20°
New PVD-coated
grade ACZ530U
provides longer and
stable tool life
Insert tightening
direction indicator
Shank Sizes
10/12/16mm
New clamping system
makes it possible to change
comers by only loosening
the screw
New clamping system
New clamping system makes
it possible to change corners
by only loosening the screw
from the back.
High quality surface finish
Excellent chip removal with
good surface finish even at
the centre of the end face.
Stable and long tool life
PVD-coated grade AC530U
provides stability and longer
tool life.
Cut-Off
Small Nip Large Nip
F41
F
Cut-Off Tools
Grooving
Cut-Off
Threading
SEC-Cut-Off Tools
SCT
Type
Insert and Holder Variations (Figures below show inserts with chipbreaker)
Holder Style
SCTR SCTL
Insert
Orientation
=20°
=20°
=20°
=20°
Insert
Shape and
Dimensions
=20°
55°
2-
s
2.5
w
=20°
=20°
2.5
w
55°
2-
s
=20°
Inserts (For Right-handed Holders)
Cat. No.
Coated Carbide
Max. Cut-off
Diameter
(mm)
Dimensions (mm)
Chipbreaker
Applicable
Toolholder
AC530U
w s
RNL
CTR 050505 R/N/L
5
0.5
0.05
19 7
Ye s
SCT R1010
SCT R1212
SCT R1616
CTR 050500 R/N/L
5
0
CTR 121005 R/N/L
12
1.0
0.05
CTR 121505 R/N/L
12 1.5
CTR 122005 R/N/L
12
2.0
CTR 121000 R/N/L
12
1.0
0
CTR 121500 R/N/L
12 1.5
CTR 122000 R/N/L
12
2.0
CTR 161005 R/N/L
16
1.0
0.05
23.1 8.3
SCT R1010-16
SCT R1212-16
SCT R1616-16
CTR 161505 R/N/L
16 1.5
CTR 162005 R/N/L
16
2.0
CTR 161000 R/N/L
16
1.0
0
CTR 161500 R/N/L
16 1.5
CTR 162000 R/N/L
16
2.0
CTR 050500 R/N/L-NB
5 0.5
0
19 7
No
SCT R1010
SCT R1212
SCT R1616
CTR 121000 R/N/L-NB
12
1.0
CTR 121500 R/N/L-NB
12 1.5
CTR 122000 R/N/L-NB
12
2.0
CTR 161000 R/N/L-NB
16
1.0
23.1 8.3
SCT R1010-16
SCT R1212-16
SCT R1616-16
CTR 161500 R/N/L-NB
16 1.5
CTR 162000 R/N/L-NB
16
2.0
Inserts (For Left-handed Holders)
Cat. No.
Coated Carbide
Max. Cut-off
Diameter
(mm)
Dimensions (mm)
Chipbreaker
Applicable
Toolholder
AC530U
w s
RNL
CTL 050505 R/N/L
5
0.5
0.05
19 7
Ye s
SCT L1010
SCT L1212
SCT L1616
CTL 050500 R/N/L
5
0
CTL 121005 R/N/L
12
1.0
0.05
CTL 121505 R/N/L
12 1.5
CTL 122005 R/N/L
12
2.0
CTL 121000 R/N/L
12
1.0
0
CTL 121500 R/N/L
12 1.5
CTL 122000 R/N/L
12
2.0
CTL 161005 R/N/L
16
1.0
0.05
23.1 8.3
SCT L1010-16
SCT L1212-16
SCT L1616-16
CTL 161505 R/N/L
16 1.5
CTL 162005 R/N/L
16
2.0
CTL 161000 R/N/L
16
1.0
0
CTL 161500 R/N/L
16 1.5
CTL 162000 R/N/L
16
2.0
CTL 050500 R/N/L-NB
5 0.5
0
19 7
No
SCT L1010
SCT L1212
SCT L1616
CTL 121000 R/N/L-NB
12
1.0
CTL 121500 R/N/L-NB
12 1.5
CTL 122000 R/N/L-NB
12
2.0
CTL 161000 R/N/L-NB
16
1.0
23.1 8.3
SCT L1010-16
SCT L1212-16
SCT L1616-16
CTL 161500 R/N/L-NB
16 1.5
CTL 162000 R/N/L-NB
16
2.0
F42
F
Cut-Off Tools
Grooving
Cut-Off
Threading
SEC-Cut-Off Tools
GNDM
Type
Cut-Off
GNDM
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max.
Cut-off Dia.
(mm)
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
a
r
w
GNDM R/L2020K-210
20 20 125 20 20 33.6 10 2.0 20
GCM 20 -
BX0520 5.0 LH040
GNDM R/L2020K-312
20 20 125 20 20 36.6 12 3.0 24
GCM 30 -
GNDM R/L2020K-418
20 20 125 20 20 45.0 18 4.0 36
GCM 40 -
GNDM R/L2020K-518
20 20 125 20 20 45.0 18 5.0 36
GCM N50 -
GNDM R/L2020K-618
20 20 125 20 20 45.0 18 6.0 36
GCM N60 -
GNDM R/L2525M-210
25 25 150 25 25 33.6 10 2.0 20
GCM 20 -
GNDM R/L2525M-312
25 25 150 25 25 36.6 12 3.0 24
GCM 30 -
GNDM R/L2525M-418
25 25 150 25 25 45.0 18 4.0 36
GCM 40 -
GNDM R/L2525M-518
25 25 150 25 25 45.0 18 5.0 36
GCM N50 -
GNDM R/L2525M-618
25 25 150 25 25 45.0 18 6.0 36
GCM N60 -
GNDM R/L3225P-312
32 25 170 25 32 36.6 12 3.0 24
GCM 30 -
GNDM R/L3225P-418
32 25 170 25 32 45.0 18 4.0 36
GCM 40 -
GNDM R/L3225P-518
32 25 170 25 32 45.0 18 5.0 36
GCM N50 -
GNDM R/L3225P-618
32 25 170 25 32 45.0 18 6.0 36
GCM N60 -
GNDM R/L3225P-718
32 25 170 25 32 50.0 18 7.0 36
GCM N70 -
GNDM R/L3225P-818
32 25 170 25 32 50.0 18 8.0 36
GCM N80 -
GNDM R/L3232P-312
32 32 170 32 32 36.6 12 3.0 24
GCM 30 -
BX0620 6.0 LH050
GNDM R/L3232P-418
32 32 170 32 32 45.0 18 4.0 36
GCM 40 -
GNDM R/L3232P-518
32 32 170 32 32 45.0 18 5.0 36
GCM N50 -
GNDM R/L3232P-618
32 32 170 32 32 45.0 18 6.0 36
GCM N60 -
GNDM R/L3232P-718
32 32 170 32 32 50.0 18 7.0 36
GCM N70 -
GNDM R/L3232P-818
32 32 170 32 32 50.0 18 8.0 36
GCM N80 -
Select holders and inserts with the same grooving widths (
w
). The maximum cut-off diameter indicated above is for inserts where r = 0.2 mm.
Above figures show right hand tools.
Cut-Off
a
r
h
1
L
2
L
1
f
w
hb
Max. Cut-off Diameter
F43
F
Cut-Off Tools
Grooving
Cut-Off
Threading
SEC-Cut-Off Tools
GNDM
Type
For GNDM
Application
Shape
Appearance
Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GCM N7004-GG
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GG
8.0 ±0.04 0.4 28.75 6.0
GL
Type
Low Feed Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GCM N7004-GL
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GL
8.0 ±0.04 0.4 28.75 6.0
GF
Type
Low cutting force Type
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Application
Shape
Appearance
Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
RLRLRLRL
Cutting width
Tolerance
Cut-Off
Fig. 3 Drawing shows a right hand tool.
w
s
4-
CG
Type
General Purpose Type
GCM R/L2002-CG-05
2.0 ±0.03 0.2 21.1 3.6
53
GCM R/L3002-CG-05
3.0 ±0.03 0.2 21.3 3.8
GCM R/L4002-CG-05
4.0 ±0.03 0.2 26.7 4.0
Select holders and inserts with the same grooving widths (w ).
Recommended Cutting Conditions (GNDM)
Work Material
P
Carbon Steel / Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
(m/min)
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f mm/rev
GG GL GF CG
Grooving
Widths
w
(mm)
2.0 0.05 to 0.25 0.03 to 0.15 0.03 to 0.12 0.05 to 0.20
3.0 0.10 to 0.30 0.05 to 0.18 0.05 to 0.15 0.08 to 0.25
4.0 0.15 to 0.35 0.08 to 0.22 0.05 to 0.18 0.10 to 0.30
5.0 0.20 to 0.40 0.10 to 0.25 0.08 to 0.20
6.0 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25
7.0 0.20 to 0.50 0.15 to 0.35
8.0 0.20 to 0.55 0.18 to 0.40
mark: Standard stocked item (expanded item)
F44
F
Cut-Off Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max.
Cut-off Dia.
(mm)
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
a
r
w
GNDL R/L2020K-220
20 20 125 20 20 44.5 20 2.0 40
GCM 20 -
BX0520 5.0 LH040
GNDL R/L2020K-320
20 20 125 20 20 44.5 20 3.0 40
GCM 30 -
GNDL R/L2020K-425
20 20 125 20 20 50.0 25 4.0 50
GCM 40 -
GNDL R/L2020K-525
20 20 125 20 20 50.0 25 5.0 50
GCM N50 -
GNDL R/L2020K-625
20 20 125 20 20 50.0 25 6.0 50
GCM N60 -
GNDL R/L2525M-220
25 25 150 25 25 44.5 20 2.0 40
GCM 20 -
GNDL R/L2525M-320
25 25 150 25 25 44.5 20 3.0 40
GCM 30 -
GNDL R/L2525M-425
25 25 150 25 25 50.0 25 4.0 50
GCM 40 -
GNDL R/L2525M-525
25 25 150 25 25 50.0 25 5.0 50
GCM N50 -
GNDL R/L2525M-625
25 25 150 25 25 50.0 25 6.0 50
GCM N60 -
GNDL R/L3225P-320
32 25 170 25 32 44.5 20 3.0 40
GCM 30 -
GNDL R/L3225P-425
32 25 170 25 32 50.0 25 4.0 50
GCM 40 -
GNDL R/L3225P-525
32 25 170 25 32 50.0 25 5.0 50
GCM N50 -
GNDL R/L3225P-625
32 25 170 25 32 50.0 25 6.0 50
GCM N60 -
GNDL R/L3225P-725
32 25 170 25 32 50.0 25 7.0 50
GCM N70 -
GNDL R/L3225P-825
32 25 170 25 32 50.0 25 8.0 50
GCM N80 -
GNDL R/L3232P-320
32 32 170 32 32 44.5 20 3.0 40
GCM 30 -
BX0620 6.0 LH050
GNDL R/L3232P-425
32 32 170 32 32 50.0 25 4.0 50
GCM 40 -
GNDL R/L3232P-525
32 32 170 32 32 50.0 25 5.0 50
GCM N50 -
GNDL R/L3232P-625
32 32 170 32 32 50.0 25 6.0 50
GCM N60 -
GNDL R/L3232P-725
32 32 170 32 32 50.0 25 7.0 50
GCM N70 -
GNDL R/L3232P-825
32 32 170 32 32 50.0 25 8.0 50
GCM N80 -
Select holders and inserts with the same grooving widths (
w
). The maximum cut-off diameter indicated above is for inserts where r = 0.2 mm.
SEC-Cut-Off Tools
GNDL
Type
GNDL
Cut-Off
Above figures show right hand tools.
Cut-Off
L
2
a
r
L
1
hb
w
f
h
1
Max. Cut-off Diameter
F45
F
Cut-Off Tools
Grooving
Cut-Off
Threading
For GNDL
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GCM N7004-GG
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GG
8.0 ±0.04 0.4 28.75 6.0
GL
Type
Low Feed Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GCM N7004-GL
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GL
8.0 ±0.04 0.4 28.75 6.0
GF
Type
Low cutting force Type
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
RLRLRLRL
Cutting width
Tolerance
Cut-Off
Fig. 3
Drawing shows a right hand tool.
w
s
4-
CG
GCM R/L2002-CG-05
2.0 ±0.03 0.2 21.1 3.6
53
GCM R/L3002-CG-05
3.0 ±0.03 0.2 21.3 3.8
GCM R/L4002-CG-05
4.0 ±0.03 0.2 26.7 4.0
Select holders and inserts with the same grooving widths (
w
).
Recommended Cutting Conditions (GNDL)
Work Material
P
Carbon Steel / Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f
GG GL GF CG
Grooving
Widths
w
(mm)
2.0 0.05 to 0.25 0.03 to 0.15 0.03 to 0.12 0.05 to 0.20
3.0 0.10 to 0.30 0.05 to 0.18 0.05 to 0.15 0.08 to 0.25
4.0 0.15 to 0.35 0.08 to 0.22 0.05 to 0.18 0.10 to 0.30
5.0 0.20 to 0.40 0.10 to 0.25 0.08 to 0.20
6.0 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25
7.0 0.20 to 0.50 0.15 to 0.35
8.0 0.20 to 0.55 0.18 to 0.40
mark: Standard stocked item (expanded item)
SEC-Cut-Off Tools
GNDL
Type
F46
F
Cut-off Tools
Grooving
Cut-Off
Threading
Cut-Off(Small Tools)
GNDM
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max.
Cut-off Dia.
(mm)
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
ew
GNDM R/L1616JX-1.510
16 16 120 (16) 16
26 0 1.5 20
GCM N150005-GF
BX0515 4.0 LH040
GNDM R/L1616JX-212
16 16 120 (16) 16 30 0 2.0 24
GCM 20 -
GNDM R/L1616JX-312
16 16 120 (16) 16 30 0 3.0 24
GCM 30 -
Select holders and inserts with the same grooving widths (w).
L
2
w
e
1
L
r
a
1
h
h
b
f
Max. Cut-off Diameter
Above figures show right hand tools.
GNDM Small Tools / GNDL Small Tools Inserts
Application
Shape Type Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack.
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Cut-Off
Fig. 1
W
S
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
Low cutting force Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
Low cutting force Type
GCM N125005-GF
1.25 ±0.03 0.05 17.4 3.2
51
GCM N150005-GF
1.5 ±0.03 0.05 17.4 3.7
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
Application
Shape Type Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack.
Fig.
AC830P AC425K AC520U AC530U
w
s
RLRLRLRL
Cutting width
Tolerance
Cut-Off
Fig. 3
Above figures show right hand tools.
w
s
4-
General Purpose Type
GCM R/L2002-CG-05
2.0 ±0.03 0.2 21.1 3.6
53
GCM R/L3002-CG-05
3.0 ±0.03 0.2 21.3 3.8
Select holders and inserts with the same grooving widths (w).
RecommendedCutting Conditions
F45
Cut-Off(Small Tools)
GNDL
Spare Parts
Holders
BFTX0412N
BX0515
LT15-10
LH040
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max.
Cut-off Dia.
(mm)
Fig.
Applicable Insert
Insert
Screw/
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
h
2
L
2
L
3
ew
GNDL R/L1010JX-1.2510
10 10 120 (10) 10 2.0 18
18.3
0 1.25 20
1
GCM N125005-GF
BFTX0412N
3.0 LT15-10
GNDL R/L1010JX-1.510
10 10 120 (10) 10 2.0 18
18.3
0 1.50 20
GCM N150005-GF
GNDL R/L1010JX-210
10 10 120 (10) 10 2.0 22
22.3
0 2.00 20
GCM 20 -
GNDL R/L1010JX-310
10 10 120 (10) 10 2.0 22
22.3
0 3.00 20
GCM 30 -
GNDL R/L1212JX-1.2512
12 12 120 (12) 12 2.0 19
19.3
0 1.25 24
1
GCM N125005-GF
BFTX0412N
3.0 LT15-10
GNDL R/L1212JX-1.512
12 12 120 (12) 12 2.0 19
19.3
0 1.50 24
GCM N150005-GF
GNDL R/L1212JX-212.5
12 12 120 (12) 12 2.0 22
22.3
0 2.00 25
GCM 20 -
GNDL R/L1212JX-312.5
12 12 120 (12) 12 2.0 22
22.3
0 3.00 25
GCM 30 -
GNDL R/L1616JX-1.512.5
16 16 120 (16) 16 28 0 1.50 25
2
GCM N150005-GF
BX0515 4.0 LH040
GNDL R/L1616JX-216
16 16 120 (16) 16 32 0 2.00 32
GCM 20 -
GNDL R/L1616JX-316
16 16 120 (16) 16 32 0 3.00 32
GCM 30 -
Select holders and inserts with the same grooving widths (w).
Above figures show right hand tools.
w
e
w
e
1
h
2
h
3
L
2
L
1
L
h
b
f
f
r
a
r
a
1
L
b
2
L
1
h
h
Max. Cut-off Diameter
Max. Cut-off Diameter
Fig. 1 Fig. 2
Cut-Off
Cut-Off
mark: Standard stocked item (expanded item)
SEC-Grooving Tools (Small Tools)
GNDM/GNDL
Type Zero Off-set